专利名称：Vertically-adjustable two-post drafting table发明人：David F. Evans,Leonard J. Yindra申请号：US05/883057申请日：19780303公开号：US04130069A公开日：19781219
摘要：A vertically-adjustable drafting table having a base with a pair of telescopingsupport columns defining an open area between the columns suitable foraccommodating any of a variety of modular storage unit combinations. Vertical
adjustment of the table top occurs through synchronized and counterbalanced extensionand retraction of the telescoping support columns, such synchronizing and
counterbalancing being achieved by mechanism housed completely within the baseassembly.
申请人：AMERICAN HOSPITAL SUPPLY CORPORATION
代理机构：Tilton, Fallon, Lungmus & Chestnut
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